Perpetual inventory using FIFO Beginning inventory, purchases, and sales data for DVD players are as follows: The business maintains a perpetual inventory system, costing by the first-in, first-out method. a. Determine the cost of goods sold for each sale and the inventory balance after each sale, presenting the data in the form illustrated in Exh are in inventory at two different costs, enter the units with the LOWER unit cost first in the Cost of Goods Sold Unit Cost column and in the Is. The business maintains a perpetual Inventory system, costing by the first-in, first-out method. a. Determine the cost of goods sold for each sale and the inventory balance after each sale, presenting the data in the form illustrated in Exhi are in inventory at two different costs, enter the units with the LOWER unit cost first in the Cost of Goods Sold Unit Cost column and in the Inv b. Based upon the preceding data, would you expect the inventory to be higher or lower using the last-in, first-out method